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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Shipping and Handling Costs & Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |  |  |  |
Shipping and handling costs | $ 1,981 | $ 706 |  |
Uncertain tax positions | $ 0 | $ 0 | $ 0 | $ 0

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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 10B -URI http://asc.fasb.org/extlink&oid=123427490&loc=SL37586934-109318 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319 + Details
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